Hi, as I would like to use dict’s dict to storage and visiting data, but I can not find the correct grammar to stat the dict’s dict, initiate it and visiting it. Can anybody give some examples about how to do it in julia? In perl, we use a lot similar features like hash’hash; hash’s array. Thank …

I’m not sure if this is what you are requesting, maybe it is. If you one entry and all keys share a type and all values share another type: julia> dict = Dict([ 1 => "one", 2 => "two" ]) Dict{Int64,String} with 2 entries: 2 => "two" 1 => "one" julia> dict[2] "two" julia> collect(keys(dict)) …

This is just Dict, it is not dict’s dict D1 = Dict(["a" => "b"]) D2 = Dict(["c" => "d"]) julia> dict = Dict([1 => D1, 2 => D2]) Dict{Int64,Dict{String,String}} with 2 entries: 2 => Dict("c"=>"d") 1 => Dict("a"=>"b") julia> dict[1]["a"] "b" ##init a dict's dict julia> dic = Dict(String => D…

julia> dict = Dict() Dict{Any,Any} with 0 entries julia> dict["b"] = Dict("a" => "This is a test") Dict{String,String} with 1 entry: "a" => "This is a test" julia> dict["b"]["a"] "This is a test"

Maybe not totally related but maybe this helps [image] Looking for a key in a nested dict New to Julia If it ocurs multiple times, only the first appearance of the key is returned. Here is an implementation that takes into account multiple returns function retrieve(dict,…

Thanks dicta = Dict() dictb = Dict() dicta["a"] = dictb #init dictb with multi keys dictb["c"] = "d" dictb["e"] = "f" dicta["a"]["c"] = "d" dicta["a"]["e"] = "f" It may work in this way. Not convenient at all! At perl, you can directly init dicta[“a”][“c”] = “d” and insert another key d…

You can use the DefaultDict from DataStructures.jl to accomplish this: julia> dicta = DefaultDict(Dict) DefaultDict{Any,Any,UnionAll} with 0 entries julia> dicta["a"]["c"] = "d" "d" julia> dicta["a"]["e"] = "f" "f" julia> dicta DefaultDict{Any,Any,UnionAll} with 1 entry: "a" => Dict{Any,Any}("…

Why not simply use Dict{String, Dict{String, String}}? dic = Dict( "b" => Dict("a", "This is a test of dict of dict") ) default(::Type{Dict{K, V}}) where {K, V} = Dict{K, V}() default(::Type{Int}) = 0 default(::Type{String}) = "" setter(k) = v -> dic -> dic[k] = v getter(k :: K) where K = fun…

Thanks, this solution is works well and can work on the fly! Also for the tip of quote code with ```

Anybody can show me the grammer for dict's dict in julia

General Usage

Olivier_Merchiers March 8, 2019, 9:00am 5

Maybe not totally related but maybe this helps

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Anybody can show me the grammer for dict's dict in julia

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